{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50413", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:53:07.002Z", "datePublished": "2025-09-18T16:03:56.853Z", "dateUpdated": "2026-08-05T08:58:41.448Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:58:41.448Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix use-after-free\n\nWe've already freed the assoc_data at this point, so need\nto use another copy of the AP (MLD) address instead." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - The UAF is reached by processing an over-the-air Association Response in ieee80211_sta_rx_queued_mgmt → ieee80211_rx_mgmt_assoc_resp during MLO association; an attacker on the same Wi-Fi segment (malicious/evil-twin MLO AP or BSSID-spoofed frame injection) delivers that frame.\nAC:L - Once an MLO association is in progress, a successful AssocResp with a valid multi-link element deterministically frees assoc_data then reuses assoc_data->ap_addr; the adjacent attacker fully controls that response, with no race or attacker-uncontrollable timing required.\nPR:N - The vulnerable path runs in the station RX/MLME soft path on the received AssocResp with no host authentication or capability check; an unauthenticated adjacent Wi-Fi peer needs no account on the victim.\nUI:N - In the worst reasonable case (auto-reconnect/evil twin of a known SSID, or an already-initiated MLO association), the AssocResp is processed automatically without a further victim action at attack time.\nS:U - The use-after-free corrupts mac80211/cfg80211 state inside the host kernel authority only and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - After kfree(assoc_data), resp.ap_mld_addr points into freed heap memory and cfg80211 later memcpy's ETH_ALEN from it; that UAF enables heap reuse and arbitrary kernel disclosure.\nI:H - The same sprayable ieee80211_mgd_assoc_data UAF while the dangling AP MLD address is consumed into connection/result state yields write and control-flow primitives characteristic of exploitable kernel UAFs.\nA:H - Use of the freed assoc_data object can oops/panic the kernel in the association-response path, so availability impact is complete even without full code execution." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/mac80211/mlme.c" ], "versions": [ { "version": "81151ce462e533551f3284bfdb8e0f461c9220e6", "lessThan": "aebef10affe16228462af680b88751bf137e2856", "status": "affected", "versionType": "git" }, { "version": "81151ce462e533551f3284bfdb8e0f461c9220e6", "lessThan": "40fb87129049ec5876dabf4a4d4aed6642b31f1a", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/mac80211/mlme.c" ], "versions": [ { "version": "6.0", "status": "affected" }, { "version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.3", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.0.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/aebef10affe16228462af680b88751bf137e2856" }, { "url": "https://git.kernel.org/stable/c/40fb87129049ec5876dabf4a4d4aed6642b31f1a" } ], "title": "wifi: mac80211: fix use-after-free", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-50413", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-01-14T19:09:34.201418Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T19:13:09.346Z" } } ] } }